An aspect of the invention provides a device, comprising: a laser machining head configured to deflect laser radiation onto an optical system comprising a substrate, the device being configured to carry out a method for separating the substrate using the optical system, the optical system being configured to provide the laser radiation, a thickness of the substrate not exceeding 2 mm in a region of a separating line, the method comprising: applying pulsed laser radiation having a pulse duration (t) to a substrate material of the substrate using the optical system, the substrate material being transparent at least in part to a laser wavelength of the pulsed laser radiation, the pulsed laser radiation being focused using the optical system at an original focal depth (f1), an intensity of the pulsed laser radiation leading to a modification of the substrate along a beam axis (Z) of the pulsed laser radiation.

An aspect of the invention provides a device, comprising: a laser machining head configured to deflect laser radiation onto an optical system comprising a substrate, the device being configured to carry out a method for separating the substrate using the optical system, the optical system being configured to provide the laser radiation, a thickness of the substrate not exceeding 2 mm in a region of a separating line, the method comprising: applying pulsed laser radiation having a pulse duration (t) to a substrate material of the substrate using the optical system, the substrate material being transparent at least in part to a laser wavelength of the pulsed laser radiation, the pulsed laser radiation being focused using the optical system at an original focal depth (f1), an intensity of the pulsed laser radiation leading to a modification of the substrate along a beam axis (Z) of the pulsed laser radiation.

An edge defect gauge that measures a size of edge defects of glass sheets, the edge defect gauge comprising: a body including opposite end edges and opposite side edges that extend between the end edges forming a body, the body having opposite flat faces; and at least one of (i) a dog ear measuring projection extending outward from one of the end edges at one of the side edges, the dog ear measuring projection having a predetermined height and a predetermined length or (ii) a cantilever measuring recess extending inward from the other end edge at the one of the side edges, the cantilever measuring recess having a predetermined height and a predetermined length.

The present invention relates to a method of manufacturing a window-glass having a print pattern for a smartphone camera, and has an object of enabling various patterns such as rings, dots, curves, and designs to be implemented within the printable extent on a window-glass for a camera.

That is, the present invention provides a method of manufacturing a window-glass for a smartphone camera, comprising a cell-cutting line fabrication process for forming cell-cutting lines on a glass disk for cell separation, a sheet cutting process for cutting the glass disk into units of sheets consisting of a large number of glass cells by a laser, a sheet tempering process for increasing a surface stress of a glass sheet by potassium nitrate and allowing the cell-cutting lines to be clearly formed, a print pattern formation process for forming a pattern on the window-glass through printing, an AR deposition process for forming an AR deposition layer to increase transmittance and reduce reflectance in a rear transmission area of each glass cell, an AF deposition process for forming an AF deposition layer on a front portion of each glass cell to prevent fingerprint and foreign matter contamination, and a cell separation process for separating cells along the cell-cutting lines by pushing the glass cells in units of sheets up or down.

Therefore, the present invention has an effect of enabling various patterns such as rings, dots, curves, and designs to be implemented within the printable extent on a window-glass for a camera.

The present invention relates to a method of manufacturing a window-glass having a print pattern for a smartphone camera, and has an object of enabling various patterns such as rings, dots, curves, and designs to be implemented within the printable extent on a window-glass for a camera.

That is, the present invention provides a method of manufacturing a window-glass for a smartphone camera, comprising a cell-cutting line fabrication process for forming cell-cutting lines on a glass disk for cell separation, a sheet cutting process for cutting the glass disk into units of sheets consisting of a large number of glass cells by a laser, a sheet tempering process for increasing a surface stress of a glass sheet by potassium nitrate and allowing the cell-cutting lines to be clearly formed, a print pattern formation process for forming a pattern on the window-glass through printing, an AR deposition process for forming an AR deposition layer to increase transmittance and reduce reflectance in a rear transmission area of each glass cell, an AF deposition process for forming an AF deposition layer on a front portion of each glass cell to prevent fingerprint and foreign matter contamination, and a cell separation process for separating cells along the cell-cutting lines by pushing the glass cells in units of sheets up or down.

Therefore, the present invention has an effect of enabling various patterns such as rings, dots, curves, and designs to be implemented within the printable extent on a window-glass for a camera.

A glass laminate article includes an adhesive film attached to a base material, and a glass substrate layer attached to the adhesive film, wherein the glass substrate layer has a side surface that is inclined with respect to an upper surface thereof by an obtuse angle. According to the glass laminate article and a method of manufacturing the glass laminate article, the glass laminate article has an excellent appearance and safety and may be easily manufactured at a low cost.

A glass laminate article includes an adhesive film attached to a base material, and a glass substrate layer attached to the adhesive film, wherein the glass substrate layer has a side surface that is inclined with respect to an upper surface thereof by an obtuse angle. According to the glass laminate article and a method of manufacturing the glass laminate article, the glass laminate article has an excellent appearance and safety and may be easily manufactured at a low cost.

A method is provided that includes providing a glass sheet of a thickness of at most 300 μm and irradiating the glass sheet with a pulsed laser beam. The laser beam has a light intensity inside the glass sheet leaves a filamentary damage along its path through the glass sheet. The laser beam and the glass sheet are moved relative to each other so that due to the pulses of the laser beam filamentary damages are inserted next to one another along a path running on the glass sheet. During the insertion of the filamentary damages, a tensile stress is applied on the glass at the filamentary damages and in the direction transverse to the path of the adjacent filamentary damages so that the glass sheet separates along the path during insertion of the filamentary damages.

A method is provided that includes providing a glass sheet of a thickness of at most 300 μm and irradiating the glass sheet with a pulsed laser beam. The laser beam has a light intensity inside the glass sheet leaves a filamentary damage along its path through the glass sheet. The laser beam and the glass sheet are moved relative to each other so that due to the pulses of the laser beam filamentary damages are inserted next to one another along a path running on the glass sheet. During the insertion of the filamentary damages, a tensile stress is applied on the glass at the filamentary damages and in the direction transverse to the path of the adjacent filamentary damages so that the glass sheet separates along the path during insertion of the filamentary damages.

This application relates to a method and system for cutting a brittle body. In one aspect the method includes preparing a brittle body having a rotary shaft. The method may also include forming a scribing line by irradiating laser on the brittle body along a preset route by using a laser irradiation unit. The method may further include cutting the brittle body by bringing a vibration unit that vibrates at a preset frequency in contact with a first region of the brittle body, which is spaced apart from the scribing line.